Aiming device.



G. A. BRODSTROM. AIMING DEVICE. APPLICATlON FILED AUG.8. 1911.

ATTORNEYS Ahl FTF.

GUS'IAF A. BRODSTROM, OF PORTSMOUTH, VIRGINIA, A SSIGNOR TO JOHN .B.BARRETT, OE ALEXANDRIA, VIRGIN-IA.

AIMING DEVICE.

meagre.

Specification ,of LettersPatent.

Patented June 11,,1191118.

'Application'fil'ed" August 8, 1917. Serial No. 185,183.

To-aZZ whom it may co'ncern Be it known that I, GUSTAF A. Bnonsrsorr, acitizen of the United States, and a resident of Portsmouth,in the countyof Norfolk and State of Virginia, havemade': certain new and usefulImprovements in Aiming Devices, of which the following is a.specification.

My invention is an improvement in: aiming devices, and has for itsobject to provide a device of the=character specified, for use withguns, for acquiring accuracy in aiming without the expenditure ofammunition.

In the drawings,

Figure l is a side view of the improvement in place; i

Fig. 2 is a partial top plan view;

Fig. 3 is a section on the line 33 of Fig. I;

Fig. 4: is a front view, and

Fig. 5 is a section on the line 55 of Fig. 1, looking in the directionof the arrows adjacent the line.

In the present embodiment of the invention a staff 1 is provided havingat one end a socket 2 for engaging over the barrel 3 of a rifle, and thesocket has a slot for receiving the front sight 4: of the rifle. Aclamping ring 5 is arranged on the socket and set screws 6 are threadedthrough the clamping ring to engage the barrel to hold the staff inplace. A socket 7 is fitted over the other end of the staff, and atarget holder 8 in the form of a substantially rectangular frame issupported by this socket. A target supporting frame 9 is mounted to movein the holder transversely of the barrel, and the frame is moved by ascrew threaded rod 10 which is journaled in the frame, passing through anut 11 in the frame, and it will be evident that when the rod is turnedthe target supporting frame will be moved laterally with respect to thebarrel.

The frame 8 is mounted for vertical movement, a rod 12 being connectedwith the bottom .of the frame and extending downwardly through thesocket 7 and the staff, and the lower end of the rod is threaded andengaged by a nut 13 which is ournaled in the staff.

It will be noticed that the nut has an annular groove at the staff andan annular rib 15 engages the groove to rotatably connect the nut withthe staff.

The frame has a depending guide pin 16, which passes through an openingin an extension 17 at one side of the socket, and the guide pin preventsrotary movement of the frame 8 when it is moved vertically;

The frame 9 has guides on opposite sides of the frameS, and one of theseguides has a target 18, a card 19 beingmounted in the other. The targetis of celluloid or like transparent material and has the usual circlesformed upon. it as shown in Fig. 5. A bracket 20 extends upward from theouter end of the socket and in the outer face of the bracket is provideda recess 21. A cap 22 is arranged within the recess, and the cap has aneedle 23, which is adapted to puncture the card, the needle extendingthrough an opening in the bracket at the bottom of the recess.

A coil spring encircles the needle within the cap, between the bottom ofthe recess and the cap, and normally forces the cap and the needleoutwardly, the movement of said cap and needle being limited by a crosspin 25.

In use the muzzle of the rifle rests on the instructors shoulder, therifle being held in the usual manner bythe person being instructed. Theperson being instructed aims through the sight and gives the directionsto the instructor for moving the target. The target is moved to theright or left by means of the azimuth screw 10, and lifted and loweredby means of the screw 12 and the nut 13, as directed, until the personbeing instructed is satisfied that the sights a re alined on the target.He then directs the instructor to mark. who presses the cap or keypuncturing the card, and the mark shows the position of the target inrelation to the sight.

The device can be used for continuous practice, the markings on the cardshowing the accuracy of the aim.

I claim 1. A device of the character specified, conr prising a staffhaving means for connecting the same to a gun, a frame having means forsupporting a target and a card in pan allel planes, a guide frame forthe target frame, means in connection with the frames for moving thetarget holding frame later ally with respect to the staff, means inconnection with the guide frame and the staff for moving said guideframe vertically, and for preventing swinging movement of the frame, ameans for puncturing the card, said means being at the center of thetarget, and comprising a key provided with a needle supported by thestaif and mounted to move toward and from the card, and a springnormally pressing the key away from the card.

2. A device of the character specified, comprising a staif having meansfor connecting the same to a gun, a frame having means for supporting atarget and a card in parallel planes, a guide frame for the targetframe, means in connection With the frames for moving the target holdingframe laterally With respect to the staff, means in connection With theguide frame and the staff for moving said guide frame vertically, andfor preventing swinging movement of the frame, and means for puncturingthe card, said means being at the center of the target.

8. A device of the character specified comprising a staff having meansfor connecting the same With the muzzle of a gun, a frame for supportinga target and a card in parallel planes, a connection between the frameand the staff for moving the frame vertically, means for moving theframe laterally and means at the end of the staff for puncturing thecard.

4:. A device of the character specified, comprising a staff having meansfor connecting the same with the muzzle of a gun, means on the staff forsupporting a target and a card in parallel planes approximatelyperpendicular to the barrel ofthe gun, means for moving the target Withrespect to the barrel, and means at the end of the staff for puncturingthe card.

GUSTAF A. BRODSTROM.

Witnesses:

G120. D. Lawson, ALICE J ONES.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington. I]. 0.

